Internal-combustion engine.



C. H. KELLY.

INTERNAL COMBUSTLON ENGINE. APPUCATION Hummm/5.1913.

l, NSA l. l Patented Fb. 22,1916.

WLM a'. mm

' ICE.

4CI-IAltllaIlilS HENRY KELLY, 0F MUNCIE, INDIANA, ASSIGNR TO MUNCIE OILENGINE COMPANY', 0F MUNCIE, INDIANA, A CROPORATION OF ILLINOIS.

INTERNAL-COMBUSTION ENG-INE.

Specification of Letters Eatent.

Patented Feb, 22, 1916'.

Application filed July 5, 1913. Serial No. 777,401.

YState 'of Indiana, have invented certain new and useful Improvements inInternal-Combustion Engines, of which the following is a specification.

My invention relates to improvements in internal combustion vengines andis directed particularly to the provision of a slmple and effectivemeans for adJusting or changing the size and capacity of the cylinder,that is,..

the compression-space ofthe cylinder.

A further object of this invention is the provision' of ,a series or setof plates, one or more of which is adapted to be detachably secured tothe cylinder head whereby the capacity of the compression spare may bevaried to meet various conditions of workv ing, fuel, etc.

ings formin ,a part hereof and which show an embodiment of my inventionapplied to an oil engine for illustration purposes only, it AbeingIunderstood that various changes may be made in'practice withinY thescope of the claim without digressing from 'my inventive' idea. l

In the drawings: Figure 1 represents' a vertical sectional View takenthrough a portion of the piston, cylinder and cylinderhead of an oilengine, showing my invention in-use; Fig. 2 is a, perspective view ofone of the plates, termed for convenience, 'compression plates.

It isV well known that the different liquid fuels used in internalcombustion engines have different chemical properties due to differencein grade, process of refining and origin, and that the flash pointvaries ,as well, and for these reasons it is necessary to provide somemeans vfor changing the com'- pression, particularly where it is desiredto use a stock engine for different fuels and different grades of fuel.Therefore it is the purpose of th is invention to provide a simple andeflicient means for varying the capacity of the compression space of thecylinder and thereby varying the compression pressure of the explosivemixture.

Referring now to the drawings, thenumeral 1 designates the cylinder, 2the cylinder head, A3 the piston, 4 the igniter head, 5 the igniterhood, 6 the igniter spoon and 7 the fuel nozzle. These features ofconstruction are well known in this art'and do not need furtherexplanation and disclosure.

, In Fig. l is shown a plurality of plates 8,

. which are shaped to it the cylinder head and detachably securedthereto as by bolts 9. It 'I is to be noted that the plates 8 are ofdifferf ent thicknesses. This is for the purpose of readily obtainingany desired size of the compression-space of the cylinder. Inassembling, changing or reversing, it is only necessary to remove thecylinder head, when convenient access may be had to the securing means9. V In the manufacture and sale of engines, a plurality or set ofplates is furnished with each stock engine so that the necessary changesmaybe readily made as desired to meet' the varyingworking conditions.

Another advantageous feature of'this in5 vention, is the fact that theplate or plates act as a he" absorbing'element, giving out the heatddii-ing the compression stroke of the'piston and keeping thetemperature df the combustion chamber up to the desired ture between thejacket and the heat of the explosion'being considerable and having aninjurious effect on the cylinder head.

What I claim is:- y In an internal combustion engine, incombination witha cylinder, an igniter head on y one end thereof, an igniter spoonconnected to said igniter head and extending into saidy cylinder, a fuelnozzle entering said cylmderl 1`00 plates adapted to be'attached tosaidend of in'presene 0 ftwo witnesses; the cylinder to reduce theCompression space thereof,v Vsaid plates ealch. having 'a central 5aperture -to-l permit them to be passed over NVtxesses:

said ignitefspoom and 4means forcdetach# j Q',G. DEANE, v.ublyconnecting them tgo said cylinder end. HENRY BREWER.

labove said igniter spoon, a plurality Vof In whereof-:lumim-y'sigvnatm'e,

. 'CHARLES HENRY KELLY. j l

